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Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machines

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-10-30 16:56:53 -04:00
parent 2ff3e9b61d
commit 35ebb934bd
5 changed files with 26 additions and 22 deletions
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27
fs/btrfs/extent_map.c
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@ -1229,7 +1229,7 @@ EXPORT_SYMBOL(test_range_bit);
static int check_page_uptodate(struct extent_map_tree *tree,
struct page *page)
{
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 end = start + PAGE_CACHE_SIZE - 1;
if (test_range_bit(tree, start, end, EXTENT_UPTODATE, 1))
SetPageUptodate(page);
@ -1243,7 +1243,7 @@ static int check_page_uptodate(struct extent_map_tree *tree,
static int check_page_locked(struct extent_map_tree *tree,
struct page *page)
{
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 end = start + PAGE_CACHE_SIZE - 1;
if (!test_range_bit(tree, start, end, EXTENT_LOCKED, 0))
unlock_page(page);
@ -1257,7 +1257,7 @@ static int check_page_locked(struct extent_map_tree *tree,
static int check_page_writeback(struct extent_map_tree *tree,
struct page *page)
{
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 end = start + PAGE_CACHE_SIZE - 1;
if (!test_range_bit(tree, start, end, EXTENT_WRITEBACK, 0))
end_page_writeback(page);
@ -1296,7 +1296,8 @@ static int end_bio_extent_writepage(struct bio *bio,
do {
struct page *page = bvec->bv_page;
start = (page->index << PAGE_CACHE_SHIFT) + bvec->bv_offset;
start = ((u64)page->index << PAGE_CACHE_SHIFT) +
bvec->bv_offset;
end = start + bvec->bv_len - 1;
if (bvec->bv_offset == 0 && bvec->bv_len == PAGE_CACHE_SIZE)
@ -1361,7 +1362,8 @@ static int end_bio_extent_readpage(struct bio *bio,
do {
struct page *page = bvec->bv_page;
start = (page->index << PAGE_CACHE_SHIFT) + bvec->bv_offset;
start = ((u64)page->index << PAGE_CACHE_SHIFT) +
bvec->bv_offset;
end = start + bvec->bv_len - 1;
if (bvec->bv_offset == 0 && bvec->bv_len == PAGE_CACHE_SIZE)
@ -1427,7 +1429,8 @@ static int end_bio_extent_preparewrite(struct bio *bio,
do {
struct page *page = bvec->bv_page;
start = (page->index << PAGE_CACHE_SHIFT) + bvec->bv_offset;
start = ((u64)page->index << PAGE_CACHE_SHIFT) +
bvec->bv_offset;
end = start + bvec->bv_len - 1;
if (--bvec >= bio->bi_io_vec)
@ -1503,7 +1506,7 @@ int extent_read_full_page(struct extent_map_tree *tree, struct page *page,
get_extent_t *get_extent)
{
struct inode *inode = page->mapping->host;
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 page_end = start + PAGE_CACHE_SIZE - 1;
u64 end;
u64 cur = start;
@ -1608,7 +1611,7 @@ int extent_write_full_page(struct extent_map_tree *tree, struct page *page,
struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 page_end = start + PAGE_CACHE_SIZE - 1;
u64 end;
u64 cur = start;
@ -1750,7 +1753,7 @@ EXPORT_SYMBOL(extent_write_full_page);
int extent_invalidatepage(struct extent_map_tree *tree,
struct page *page, unsigned long offset)
{
u64 start = (page->index << PAGE_CACHE_SHIFT);
u64 start = ((u64)page->index << PAGE_CACHE_SHIFT);
u64 end = start + PAGE_CACHE_SIZE - 1;
size_t blocksize = page->mapping->host->i_sb->s_blocksize;
@ -1792,7 +1795,7 @@ int extent_prepare_write(struct extent_map_tree *tree,
struct inode *inode, struct page *page,
unsigned from, unsigned to, get_extent_t *get_extent)
{
u64 page_start = page->index << PAGE_CACHE_SHIFT;
u64 page_start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 page_end = page_start + PAGE_CACHE_SIZE - 1;
u64 block_start;
u64 orig_block_start;
@ -1890,7 +1893,7 @@ EXPORT_SYMBOL(extent_prepare_write);
int try_release_extent_mapping(struct extent_map_tree *tree, struct page *page)
{
struct extent_map *em;
u64 start = page->index << PAGE_CACHE_SHIFT;
u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
u64 end = start + PAGE_CACHE_SIZE - 1;
u64 orig_start = start;
int ret = 1;
@ -2202,7 +2205,7 @@ int clear_extent_buffer_dirty(struct extent_map_tree *tree,
if ((i == 0 && (eb->start & (PAGE_CACHE_SIZE - 1))) ||
((i == num_pages - 1) &&
((eb->start + eb->len) & (PAGE_CACHE_SIZE - 1)))) {
start = page->index << PAGE_CACHE_SHIFT;
start = (u64)page->index << PAGE_CACHE_SHIFT;
end = start + PAGE_CACHE_SIZE - 1;
if (test_range_bit(tree, start, end,
EXTENT_DIRTY, 0)) {